For Khnoros CTS1 support, ANGLE needs to add conformant and
rendererType for OpenGL ES1 version.

Bug: angleproject:4457
Change-Id: I58ac4672352d3d42e4b8403b80f86154b6a76edc
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2160515
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>